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Claims

What is Claimed is:

1. An electronic device, comprising:

a display system having a plurality of laterally adjacent pixel arrays arranged in a tiled pattern, wherein the pixel arrays are configured to produce images; and an optical system having an input portion and an output portion, wherein the optical system is configured to display the images in multiple image planes and wherein the optical system comprises:

a waveguide that extends between the input portion and the output portion;

an input coupler system having a plurality of laterally adjacent input couplers arranged in a tiled pattern in the input portion, wherein each of the input couplers is configured to couple images from a respective one of the pixel arrays into the waveguide; and

an output coupler system that is configured to couple images out of the waveguide in the output portion, wherein the output coupler system is configured to present the images from each of the laterally adjacent pixel arrays in a different respective image plane.

2. The electronic device defined in claim 1 further comprising a head-mounted support structure configured to support the display system and the optical system.

3. The electronic device defined in claim 2 wherein the output coupler system comprises a plurality of stacked output couplers in the output portion and wherein each output coupler has a different respective focal length and is configured to couple images out of the waveguide from a different respective one of the pixel arrays.

nolograpnic output couplers is configured to couple light of a different respective wavelength out of the waveguide.

6. The electronic device defined in claim 4 wherein each of the volume holographic output couplers is configured to couple light of a different respective polarization out of the waveguide.

7. The electronic device defined in claim 4 wherein each of the holographic output couplers is configured to couple light with a different respective range of angles of orientation out of the waveguide.

8. The electronic device defined in claim 4 wherein the laterally adjacent pixel arrays are formed on a common silicon substrate.

9. The electronic device defined in claim 4 wherein each of the laterally adjacent pixel arrays is formed on a different respective silicon substrate.

an optical system configured to display the images in multiple image planes, wherein the optical system comprises:

a waveguide having first and second opposing ends;

an input coupler system at the first end having a stack of plane-to-plane holographic input couplers to couple the images into the waveguide;

an output coupler system at the second end that has a stack of holographic output couplers each of which has a different respective focal length; and

a head-mounted support structure configured to support the display system and the optical system.

12. The electronic device defined in claim 11 wherein the display system is configured to produce a plurality of images each of which is associated with image light at a different set of wavelengths.

13. The electronic device defined in claim 11 further comprising:

an adjustable polarization rotator between the display system and the input coupler system.

14. The electronic device defined in claim 11 wherein the display system comprises a liquid-crystal-on-silicon pixel array and a light source with light-emitting diodes.

15. The electronic device defined in claim 11 wherein the stack of output couplers includes at least one plane-to-plane output coupler.

16. A electronic device, comprising:

a display system having a plurality of pixel arrays, wherein the pixel arrays include at least a first pixel array configured to produce first images and a second pixel array configured to produce second images;

a first waveguide;

a second waveguide;

a first plane-to-plane holographic coupler configured to couple the first images into the first waveguide;

a second plane-to-plane holographic coupler configured to couple the second images into the second waveguide; and

an output coupler system configured to display the first and second images in different respective first and second image planes, wherein the output coupler system includes a first holographic coupler with a first focal length configured to couple the first images out of the first waveguide and a second holographic coupler with a second focal length configured to couple the second images out of the second waveguide.

17. The electronic device defined in claim 16 wherein the first and second

pixel arrays are formed on respective first and second silicon substrates.

18. The electronic device defined in claim 16 wherein the first and second pixel arrays are formed on a common silicon substrate.

19. The electronic device defined in claim 16, wherein the first and second holographic output couplers overlap in an output coupler stack and wherein the first images pass through the second holographic output coupler.

20. The electronic device defined in claim 16 wherein the first and second pixel arrays comprise liquid-crystal-on- silicon pixel arrays.